Mode=FDISK Menu: [FDISK style and LVM partition management]

This will display an overview of the partitionable media in table
form, plus extensive geometry and size information for each disk.
For each disk a pseudo-graphical map will be shown, with each
partition or freespace area sized and colored according to its
real size and type of filesystem being used.
Some key information for each area will be shown inside each
partition or freespace area displayed.
Note that a 'disk' can be any partionable media supported by
DFSee, like physical disks, virtual-disks, images and others ...
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

This submenu has several selections that will find partition related
sectors on the current disk using the 'bsfind' command.
You can search for partition-tables (MBR/EBR/bootsector) plus LVM,
or filesystem-specific superblock sectors, or a combination.
The search is quite fast because it searches on cylinder boundaries
where 99.99% of those type of sectors will be located anyway.
This method of searching can be more than 200 times faster than
simply searching every sector on the disk ...
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

This will search ALL partitioning and LVM related sectors on the
current disk using the 'bsfind' command.
This is the same search as used in the DFSDISK procedure for UNFDISK
analysis purposes, and might be useful to allow operations on these
sectors like exporting them, or even wiping them all clean.
The search is very similar to other analysis and recovery tools like
FINDPART and TESTDISK and is the basis for partition recovery.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

This will display the DFSee sector-list in a compact format,
suited to the data contained in the list, when known
This usually is a 'list -f' or a 'list -s' variant.
The FS-mode, reflected by the 'Mode=xxxx' menu and the 'mode=xxxx'
display in the DFSee status line, will be temporarily set to the
mode it was during creation of the list, to make sure any additional
intelligence or formatting of the list is preserved.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

This will display the DFSee sector-list in a more verbose format,
suited to the data contained in the list. This could be in the form
of one path+filename on a line for lists representing filenames, to
detailed sector-dumps for lists related to partitioning information.
This usually is a 'list -d' or a 'list -b' variant.
The FS-mode, reflected by the 'Mode=xxxx' menu and the 'mode=xxxx'
display in the DFSee status line, will be temporarily set to the
mode it was during creation of the list, to make sure any additional
intelligence or formatting of the list is preserved.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

When any freespace area exists that could be used to create a new
partition, this will present you with a list of freespace areas.
When a specific freespace area is selected, the actual CREATE dialog
will be presented that allows further specification of the partition
to be created.
In the selection list, freespace areas that are either too small, or
located such that no partition could be created there, are listed
but cannot be selected (they are disabled, black text).
If all entries are disabled, no partitions can be created at all.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a freespace area to be used

A partition can be selected here that will be DELETED from the
partition-tables. This will result in the space occupied by the
partition becoming FREESPACE that can be used again to create
new partitions.
For primary partitions on LVM-systems, the related LVM-information
is cleared as well, to avoid consistency problems later when a new
partition is created at the same position.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

A partition can be selected here for which the PARTITION-TYPE can
be changed to a predefined value from a list, or a custom value
specified as a hexadecimal number.
The type usually represents the type of filesystem that is used
for the partition, although some types are used for more than
one filesystem (0x07 = HPFS or NTFS and 0x83 is EXT2 or EXT3).
The most used values are predefined and selectable from a list
with a short description, and a full line of extra description
in the statusline at the bottom of the screen.
To change the type of an extended container (05 / 0f), use the
'fixext' command, or menu 'Fix EXT container type' instead.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

Set one of a few related properties for a partition:
- ACTIVE
This will set the selected partition the ACTIVE (startable)
one, so it will be the one booted by the BIOS for this disk.
There should only be ONE active partition on each disk,
and this should be a PRIMARY partition
- HIDDEN
A partition can be selected here that will be HIDDEN for the
operating system by manipulating the partition-type.
- VISIBLE
A partition can be selected here that will be made VISIBLE for
the operating system by manipulating the partition-type.
Other visible primaries on the same disk will be hidden.
- MULTI-VIS
A partition can be selected here that will be made VISIBLE for
the operating system by manipulating the partition-type.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

A PRIMARY partition can be selected here that will be made
the ACTIVE one for the disk, meaning the BIOS would start
the operating system in this partition at boot time.
Selecting a LOGICAL will result in an error message.
There should only be a single active partition on every disk.
When the system starts, the BIOS will usually boot from
the ACTIVE partition on the first disk.
In IBM BMGR/LVM terms the active partition is called STARTABLE.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

From main menu: Mode=FDISK -> Set partition Status to -> Not active, clear flag

Make partition NOT ACTIVE, clearing the status flag, NOT booted by the BIOS

A PRIMARY partition can be selected here that will be made
NOT ACTIVE, meaning it will NOT be started by the BIOS.
Selecting a LOGICAL will result in an error message.
There should be at most ONE active partition on every disk.
When the system starts, the BIOS will usually boot from
the ACTIVE partition on the first disk.
In IBM BMGR/LVM terms the active partition is called STARTABLE.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

A partition can be selected here that will be HIDDEN for the
operating system by manipulating the partition-type.
The type is changed by adding 0x10 to the value (0x06 ==> 0x16)
and will result in the partition not being seen anymore by most
operating systems.
This method will work for partition-types 0x01 through 0x0e only,
with the 'hidden' values being in the range 0x11 through 0x1e
Operating systems like Windows-XP and LVM-aware OS/2 and eCS will
still see those partitions however, since they use a different
mechanism to hide and show partitions.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

From main menu: Mode=FDISK -> Set partition Status to -> Visible, allow just one

Make partition VISIBLE by manipulating the partition-type (non-LVM method)

A partition can be selected here that will be made VISIBLE for the
operating system by manipulating the partition-type.
The type is changed by subtracting 0x10 from the value (0x16 ==> 0x06)
and will result in the partition being seen again.
This method will work for partition-types 0x01 through 0x0e only,
with the 'hidden' values being in the range 0x11 through 0x1e
If the partitions is a PRIMARY one, other primary partitions on the
same disk will be hidden by default.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

A partition can be selected here that will be made VISIBLE for the
operating system by manipulating the partition-type.
The type is changed by subtracting 0x10 from the value (0x16 ==> 0x06)
and will result in the partition being seen again.
This method will work for partition-types 0x01 through 0x0e only,
with the 'hidden' values being in the range 0x11 through 0x1e
When the partition is a PRIMARY, the other primaries on the same
disk will NOT be affected. This may result in multiple-primary
partitions being visible, which could be a problem for some older
operating systems.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

On selection this will open a submenu containing all partitions
on all the disks known to DFSee.
The partitions are grouped per physical/virtual disk
Selecting one of these will open it for further use and set
the 'base' values to the start and end of the partition.
Logical sector number 0 (LSN 0) will represent the first
sector in the real partition (bootsector)
After opening the partition, its bootsector will be displayed.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

On selection this will open a submenu containing all physical
and virtual disks known to DFSee.
Selecting one of these will open it for further use and display
the first sector of the disk, the MBR with a partition-table
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used

After selecting ALL or one specific disk, this will present a save-as
dialog allowing you to specify a (base) filename for the binary .PDx
file(s) that will be a BACKUP of all partition-table, bootsector,
and LVM-information sectors for the specified disk(s).
This is a very compact backup for your partitioning scheme, that can
be used to recover from virii, FDISK errors or other disasters that
have damaged your partition tables or bootsectors.
You can restore ALL information using the corresponding 'Restore ...'
menu item, or you can selectively restore individual sectors by using
the command 'PRESTORE' from the DFSee commandline.
Note that these 'BACKUP' .PDx files do NOT contain any USER-DATA!
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

After selecting one .PDx file that contains a binary BACKUP of all
partitioning information for a disk, the sectors contained in this
file will be restored to the SAME disk-number as is was created for.
You can specify which type of sectors are to be restored:
r = MBR sectors e = EBR sectors
G = GPT headers g = GPT entries
l = LVM info, DLAT s = LVM sig, BBR
b = Partition boot sectors
If you specify just a BASE name for the file (without an extension),
ALL files with that basename will be restored to the matching disks.
(You can manually erase the extension in the Dialog filename field).
This is a very quick restore of your partitioning scheme after damage
from virii, FDISK errors or other disasters.
The .PDx files can be created by running the DFSDISK or DFSTART
procedures too, since these use the same 'PSAVE' command'.
Be aware that the partition-scheme will be restored EXACTLY to the
state it was when the backup .PDx file was created, so any changes
to the partitioning, or even a FORMAT of a disk after creation of
the .PDx file, will be lost
You can also selectively restore individual sectors by using
the command 'PRESTORE' from the DFSee commandline.
Note that these 'BACKUP' .PDx files do NOT contain any USER-DATA!
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Generate a DFSee script (.DFS) that will (re)create partitions
on the same or a different disk the way they currently are.
It will present you with a dialog, where you can specify the disk(s)
you want scripts generated for, as well as some options refining the
way the script will create the partitions.
You also need to specify the (base) filename for the script(s) to
be generated, which may include a path component.
You can also add a short description to identify the system of the
disk involved, and this description will be presented in the first
confirmation dialog when running the generated script later.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

The boot-code in the master-boot-record (MBR) for the disk to be
selected here will be refreshed to generic extended-int-13 aware
bootcode by DFSee.
This will get rid of any MBR virii, but would also remove MBR
resident bootmanagers like LILO, GRUB or AirBoot as well as
disk-translation software like Ontrack diskmanager.
The partition-tables which are also in the same MBR sector are NOT
affected by this action, so all partitions will still be there.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

The boot-code in the master-boot-record (MBR) for the disk to be
selected here will be refreshed to generic extended-int-13 aware
bootcode by DFSee.
This will get rid of any MBR virii, but would also remove MBR
resident bootmanagers and disk-translation software like Ontrack.
The partition-tables which are also in the same MBR sector will be
cleared completely by this action, so all partitions are DELETED!
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used

The boot-code in the master-boot-record (MBR) for the disk to be
selected is refreshed to the code in the selected RAW imagefile.
This will get rid of any MBR virii, but would also remove MBR
resident bootmanagers like LILO, GRUB or AirBoot as well as
disk-translation software like Ontrack diskmanager.
The partition-tables which are also in the same MBR sector are NOT
affected by this action, so all partitions will still be there.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

The boot-code in the master-boot-record (MBR) for the disk to be
selected is saved to a 1-sector RAW imagefile (512 bytes) so it
can later be restored as is (RESTORE) or used to refresh only the
MBR code for this or another disk (NEW MBR code from an IMAGE).
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used

The NT-signature value in the MBR sector, just before the tables,
will be displayed in a dialog and can be updated to a new value.
It is a 32-bit value used by Windows-NT and later version to allow
identification of a disk by the disk-manager, even when the disk is
moved to another controller, or has been temporarily removed.
Related to this signature are paritions and driveletters.
When an unknown disk is attached (no or unknown signature)
the disk-manager will re-assign default driveletters.
In this dialog, you can specify a new value of the signature,
as an 8-digit hexadecimal value (32 bits)
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

This will WIPE the reserved sectors in the FIRST track of the
selected disk to all ZEROES, completely removing remains of
hidden bootmanagers, raid-configuration, overlay-managers and
similar stuff that may cause you problems
Make VERY SURE your system does NOT RELY on any of these
sectors to boot, or otherwise function properly!
The MBR sector itself (sector 0), and for OS/2 LVM systems
the LVM-info sector (DLAT, last sector) will be untouched.
All sectors in between are wiped ...
Useful when the remains cause problems with new installs,
or otherwise interfere with normal operation.
When the disk-geometry, or the alignment of the partition
results in NO reserved sectors, a warning is displayed.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used

Wipe reserved sectors for partition, in EBR for logical. Keep table and LVM.

This will WIPE the reserved sectors in the FIRST track of the
selected PARTITION to all ZEROES, completely removing remains
anything bad hiding there
When selecting a LOGICAL partition, this will wipe the area
between the EBR sector and the LVM or partition boot sector.
When selecting a PRIMARY it will wipe the sectors between the
MBR sector and the first LVM sector, or end of the MBR track.
The MBR/EBR sector itself (with the partition table), and for
OS/2 LVM systems the LVM-info sector (DLAT, last sector in track)
will be untouched. All sectors in between are wiped ...
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

Convert an MBR-style disk to an EMPTY GPT one
This is a 'NEWMBR -clear' command, removing the MBR partitions,
followed by a 'CR gpt' that will create a GPT guard partition
spanning the whole disk, effectively making this a GPT disk.
Any new GPT partition can then be created using 'CR gpt ....'
style commands, or the 'Create new partition' menu item.
The operation is NOT directly recoverable, since the primary MBR
table is zeroed. However, using the DFSee DFSDISK procedure it
may be possible to recover the MBR-style partitions with some
additional effort.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used

Convert a GPT-style disk to an EMPTY MBR one.
This is basically a 'NEWMBR -clear' command that results in new
code in the MBR and EMPTY table slots, meaning that the GPT guard
partition is effectively deleted, and the disk is considered to be
a regular MBR disk.
However, since the actual GPT information in the folowing sectors
and the end of disk is untouched, this conversion is recoverable
until those structure are overwritten by something else.
(recover using 'Convert an MBR disk to GPT)'
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used

All CHS-values for the disk to be selected here will be checked
against the current disk-geometry, and be corrected to match that
geometry when needed.
it will also make sure ALL partition-table entries on the selected
disk(s) will use the SAME CHS-style IBM/PQ/MS for dummy entries.
You may get an extra dialog allowing selection of the desired style,
depending on previous selections made ...
This may fix 'partition-tables on disk may be corrupt' messages
from FDISK/LVM or errors and warnings by other tools.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

This menu selection lets you perform a FIX operation on the GPT
structures for the disk to be selected.
It will use the 'in-memory' GPT information that was retrieved
from the primary (start of disk) and alternate (end of disk)
locations, recalculate all CRC-values, and will write that back
to the primary and alternate locations.
This can be used to recover from damaged primary or alternate
GPT structures, or to get all the CRC values consistent after
manually editing the structures.
As a side effect, the GPT partition table will be SORTED on
the start sector for each partition in ascending order.
Note: When using the (GPT) Partition Table Editor that is in
the Edit menu, the primary and alternate locations and the CRC
values are kept in sync automatically.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used

This will remove the volumename and driveletter from the
selected partition, but KEEP other partition information
and the partition definition in the partition tables.
(Unlike LVM.EXE 'delete volume' that destroys partitions)
This will effectively DELETE the Volume for LVM, and at the
same time, make the partition 'available' again to be used
to create a new volume 'from existing partition' in LVM.
When this partition was one of a 'multiple-partition volume'
ALL the partitions in that volume will become 'available'.
Note that after deleting the LVM volume in DFSee and starting
the LVM program (without rebooting) it will declare this disk
as 'possibly corrupt' since it does not find the LVM volume
information anymore for one of its active driveletters.
That driveletter will stay accessible as well.
Only after rebooting, or an exit with 'save changes' from
LVM will it make the driveletter disappear completely, and
the message about the 'corruption' in LVM disappear.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

This will initialize all fields in the LVM information sector
(IBM term: DLAT) to empty, removing any existing information.
Then for type 0x35 partitions only (LVM/JFS) when the redundant
information sectors with Bad-Block-Relocation and Drive Linking
information (IBM term: BBR) are present, it will use that to
re-initialize the fields.
The nett effect of this is that for:
- Compatibility volumes (any non LVM/JFS):
Any old inconsistent remains of LVM info is gone,
allowing for a fresh definition for this partition.
- LVM volumes (JFS):
The information in the DLAT sector and BBR sectors is
consistent again, and the same serialnumbers for partitions
and volumes are kept, so a multi-partition JFS volume will
not be broken.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

Add default LVM-information to the selected disk(s), making it LVM-enabled

This will create default LVM-information for all partitions on the
selected disk(s) that do not have any LVM-info yet.
This includes a default name for the whole disk.
The functionality is similar to the standard IBM-utility 'VCU' or
'Volume Conversion Utility' that is typically used on first-time
installs of any LVM-aware IBM operating system.
The VCU utility however is known to create severe disk-problems
when the disk-drivers in use are not the correct ones.
The 'VCU' command in DFSee has not caused such problems so far and
is considered a safer way of converting a non-LVM system into an
LVM-aware one in a single step.
When the disk already contains LVM-information, the diskname will
stay the same, but most partition and volume-names will be changed
to the default ones generated by DFSee, any assigned drive-letters
may get lost and need to be re-assigned (depending on current OS).
The driveletters recognized by the DFSee program executing 'VCU'
will be the ones that are assigned in the created LVM-information.
Typically, a 'VCU' action will be followed by interactive or batch
LVM operations to fine-tune the names and assign driveletters.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

This will REMOVE all LVM-information for all partitions on the
selected disk(s), reversing the effect of a VCU operation.
This may be useful to allow other tools to create LVM information
without being influenced by existing info, or to avoid confusing
an LVM-aware tool (like DFSee) when LVM information was accidentally
added to a disk mounted on a non-LVM system.
In addition to the LVM sectors that match the current disk-geometry,
this selection will also CLEAN the whole MBR area (sectors 1 .. 254)
from any left-over and obsolete LVM DLAT sectors.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

This will change the name for a complete disk, as recorded in all
the LVM-information sectors on that disk.
Note that the name can only be CHANGED this way, there has to be
valid LVM-information, created by DFSee 'VCU', a DFSee 'CREATE'
or the regular OS/2 or eCS VCU or LVM tools.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used

This will set the recorded geometry in all LVM DLAT sectors
on the disk to match the current DFSee logical geometry.
This will make sure that the recorded geometry is consistent
over the whole disk, and also allows corrections if the used
geometry is incorrect.
An incorrect LVM geometry may lead to a failure to boot or
to recognize any partition correctly since this info is one
of the sources for geometry information for the disk-drivers
like DANIS506.ADD and IBM1S506.ADD.
You can display or set logical geometry using the 'geo' command.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

This will CLEAR all LVM-signature sectors (BBR) on non-LVM type
partitions (compatibility) that may have been left behind after
making changes, by wiping it with a 0xF6 byte pattern.
This will make sure that the obsolete info is NOT picked up by
the LVM partitioning program or the eComstation installer and
cause them to report a 'Corrupt partition table' or to cause a
failure in MOUNTING this partition and assign it a driveletter
when the information in the BBR sector is inconsistent.
All non 0x35 type partitions on the specified disk(s) will then
be guaranteed to be of the 'COMPATIBILITY' kind, not 'LVM'.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used , including 'ALL disks'

This will create a primary partition for the IBM Bootmanager
and install the Bootmanager code from 'DFSIBMGR.IMG' image
into the new partition
You can choose the location for the new Bootmanager by selecting
from a list of applicable freespace areas (primary, 1 cylinder).
When the selected freespace area is larger than one cylinder,
you can select to put it at the START or END of that area.
Installing it in the MIDDLE is not possible this way, but
can be achieved by using the 'Create Partition' menu item
and selecting the 'IBM BootManager' type there.
Un-installing a Bootmanager is done using the 'Delete Partition'
menu item and selecting its partition there, or by using a manual
'delete xx' command.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a freespace area to be used

This will add the selected partition to the IBM BootManager menu.
A list with ALL partitions is presented, including the ones that
are already on the menu.
After selecting a partition, a dialog will be presented where
you can specify the name for the partition as it should appear
on the bootmanager menu. This will default to the volume name
for an LVM-system, and the current menu-name for a classic one.
Be aware that for an LVM system, the specified name will also
be the VOLUME name, so it needs to be unique over all volumes.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a partition to be used

This will set the default item for the IBM Bootmanager to be
started after the timeout period has expired.
The default can either be one of the available partitions on
the Bootmanager menu, or it can be the special value:
Last-booted or BM-default
This selection will cause the default to be whatever the LAST
booted partition was on the previous Bootmanager run.
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The bootsector for IBM-bootmanager on the disk selected here will
be updated to avoid damage by the CHKDSK program from Windows-2000.
Without this, the W2K CHKDSK may incorrectly identify BMGR as a
damaged FAT partition and will try to repair it, breaking it ...
As an alternative, you could apply servicepack-2 to Windows-2000.
This function will also verify and fix the CHS values recorded
for the bootsector and configuration data sector for BMGR.
Finally it will deactivate the explicit 'I13X' check in the BMGR
code that results in a dependancy on the IBM MBR 'I13X' signature.
After this deactivation, BMGR can be used with other MBR code
like Linux GRUB as well (see 'bmfix' documentation too).
Note: To allow booting OS/2 with non-I13X MBR code, you should
also perform a 'fixboot' on any bootable HPFS partitions
that are beyond the 1024 cylinder limit.
The MBR used MUST be able to start partitions beyond the
1024 cylinder limit, but does not need to set the 'I13X'
signature normally required by OS/2
The standard Windows (XP) MBR does NOT work beyond 1024!
To reactivate the I13X dependancy use 'bmfix -I13X'
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Selection of this item leads to a dynamic created submenu, to select a disk to be used